Nothing extraordinary. I just figured out how easy it is to create your own brushes with Gimp. It is a set of simple runes which I came up with after some inspiration from the google image search. They don't have particular meanings (at least none I'm aware of). The actual shapes where created in Inkscape. Both Gimp and Inkscape are great opensource tools for creating graphics (some people still haven't found out). To use custom brushes in Gimp on your Linux box just copy them to ~/.gimp-2.6/brushes (assuming Gimp Version 2.6). I created a new Section for Gimp brushes on ji-xiansheng.de. Go there and download the zipped brushes